Manual Ways to Fix “Spelling Check is Not Working in Outlook 2016/2013/2010/2007”īefore learning the ways to fix the Spell Check issue in Outlook, users should know the possible reasons behind it which are outdated Outlook version, older version of Outlook, third-party Outlook Add-ins interference, virus or malware attack, disabled Spell Check/Proof Read Outlook feature, unsupported email language, incorrect Outlook installation, etc. Without wasting any time, let us move towards the tricks or ways through which you can analyse the issue and fix the problem where Outlook is unable to identify misspelled and grammatically incorrect words. Recommended: Manual Methods to Repair PST File